According to the navigation rules, all of the following are engaged in fishing except a ve

题目内容(请给出正确答案)

According to the navigation rules, all of the following are engaged in fishing except a vessel ______.

A.Setting nets

B.Trawling

C.Using a dredging net

D.Trolling

参考答案和解析
正确答案:D
根据航行规则,所有以下除曳钓渔船外都是捕鱼船。
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